Air translating apparatus



Nov. 4, 1941. G. H.; KoH 2,261,391 y AIR TRANSLATING APPARATUS Filed sept. 21, 1939- 2 sheets-sheet 1 50 ATTORN 2 Sheets-Sheet 2 INVENTOR N R O Tn T A H Mw. K H, W l

Nov. 4, 1941. G. H. KOCH- AIR TRANSLATING APPARATUS Filed sept. 21, 1959 A WlTN ESSES:

` Patented Nov. 4, 1941 2,261,391 Ain TRANSLATING APPARATUS n Gustav H. Koch, Springiield, Mass., assignor'to Westinghouse Electric & Manufacturing Company, East Pittsburgh, Pa., a', corporation of Pennsylvania Application September 21, 1939, Serial No. 295,924

9 Claims.

' construction which facilitates assembly and disassembly thereof.

A furthervobject is to provide improved means for adjusting the angularvpositlon of the fan in the cabinet.

These and other objects areeffected by my invention as will be apparent from the following description and claims taken in connection with the accompanying drawings, forming a part of this application, in which:

Fig. 1 is a vertical section taken on the line.

I-I of Fig. 2;

Fig. 2 is a horizontal section taken on the lin lI-II of Fig. 1;

Fig. 3 is a vertical sectiontaken on the line III-III of Fig. 2; and

Fig. 4 is a front elevation with parts removed and others broken away. Y

Referring to the drawings in detail, I show a cabinet fan including a fan motor unit I0, and a cabinet II in which the unit is enclosed. The cabinet fan shown on the drawings is adapted to be mounted on the floor, on a tableor any other suitable supporting surface. Accordingly, the fan motor unit is adapted tov be tilted in .order that the air may be directed in an upwardly-inclined direction when the cabinet fau is placed on the iloor and discharged in a horizontal direction when it is placed on a table or the like.

' The body of the cabinet is madev of wood and includes opposite side Walls I2 and I3, a bottom wall I4 and other wall portions as shown on the drawings. It has an inlet opening I5 at the rear and an outlet opening I6 at the frontend top. Wire grilles, Il and I8 are positioned across the inlet and outlet openings, respectively. They maybe of any suitable construction, and fastened to the cabinet body in any suitable manner, for example, as shown on the drawings and as more fully described and claimed in the application of Lawrence S. Riendeau, Serial No.- 296,538, iiled September 26, 1939;

'The fan motor unit I0 includes an electric motor I9 of any vsuitable construction, preferably enclosed in a steel casing'20. It further includes lpropeller blades 2| secured together to form; a

fan or blade wheel which is overhung on the motorshaft 22 and retained thereonby means of a set screw.

One feature of the'present invention resides in the construction for pivotally mounting the fan motor unit in the cabinet on a horizontal axis extending between the side walls I2 and I3. This construction includes, rst, a pair of arms 23 extending horizontally in opposite directions from the motor casing 20 and forming therewith a horizontal rock shaft or supporting structure for tilting lthe fan motor unit. Each arm 23 comprises two channel elements 2l, each of which is U-shaped in cross-section, as shown in Figs. 1 and 3. The sides of the U of each channel element are disposed in overlapping relation to and welded to those of the other chan'nel element to provide a tubular arm of rectangular cross-section. The intermediate portion of each channel element is provided at one end with an ear or tab `25-formed to lie fiat against the motor casing 20 and spot welded thereto. As will be noted from the drawings, the four channel elements 2t are of the same form, thereby simplifying the I 25v manufacturing and assembling operations.

The tubular arms are ,open at their outer ends.

Into-each of these open ends thereis inserted a rubber bushing having a rectangular outer surface, as shown in Fig. 3, to fit the inside of the tubular arm. Trunnions 2l, fastened to plates 28 in any suitable manner, as by riveting, are

inserted in the openings lin the bushings 26. The

rubber bushings 26 may be formed with inserts` orliners 29 for direct contact with thetrunnions.

inner surfaces with grooves 30 disposed in aligned4 or opposed relation., These grooves extend from substantially the center of the side walls hori-v zontally to the rear or inlet edge. The plates 28 are adapted to t and slide horizontally in the grooves l30. The plates 28 are adapted to be s ecured to the side walls I2 and I3 in any suitable manner, as by means of screws 3 I.

It will be seen that this construction greatly facilitates the assembly of the parts and the mounting of the fan motor unit in thecabinet. The yrubber bushings 26 are inserted in the ends of the arms 23, and the trunnions 2l are inserted in the bushings.The assembly is then v 30 and sliding the same horizontally therein to the' 4operative position shown onthe drawings. Inasmuch as the parts are brought into interlocking relation by movement lengthwise of the larms 23, it willbe seen that the several parts of The side walls I2 and I3 are formed on their I mounted by inserting the plates 28 in the grooves `one position to another.

the assemblyare held in assembled relation as soon as the plates 28 are inserted in the grooves 30. Accordingly, the possibility of the parts becoming separated or moving out of their proper relative position is eliminated once the plates enter the grooves. Also, it will be noted that the parts are held and supported in proper assembled relation While the screws 3I are inserted to fasten the plates 28 in proper position. y

The blade wheel is preferably removed from the motor shaft 22 while the assembly is being mounted in or removed from the cabinet, in order to avoid possibility of bending the blades. However, the assembly may be mounted or removed with the blade wheel mounted on the motor shaft by tilting the motor at a suitable angle.

A lever 32 is provided to adjust the angle'of tilt or angular position of the fan motor unit. Its outer end, which is covered by a rubber cap 33, projects through the outlet opening between the inner side of the wall I2 and the wire grille I8. That portion of the edge of the wall I2 along which the lever is movable, and the adjacent portion of the grille I8, are formed on an arc concentric with the axis on which the fan motor unit is pivoted. Accordingly, the projection of the lever 32 from the cabinet is substantially uniform. 'I'he lever is made of spring steel and is secured to the arm 23 adjacent the -side wall I2 in the manner shown in Fig. 2. that is, atan angle such that, if it were not deflected, it would extend 'into the side wall I2. the outer end of the lever is bent or flexed toward the interior of the cabinet by contact of its rubber cap 33 with the vinner surface of the side wall I2. This spring effect biases the fan motor unit and the arms 23 toward the opposite side wall I3 thereby eliminating end play and reducing possible noise. It also reduces possible rattling of the lever against the side wall I2.

In order to position the lever 32. pins 34 having enlarged heads are attached to thevinner side of the wall I2 adjacent the edge thereof, as clearly shown on the drawings. These pins are disposed so that the lever may be located in any one of six positions between adjacent pin heads. The uppermost and lowermost pin heads are of greater length to limit the angular move'- ment of the lever. The intermediate .pin heads are relatively short in order that the outer end of the lever may be flexed toward theinterior ofthe cabinet and moved over the pin heads from As will be apparent from Figs. 1 and 3, the lever may be adjusted from a horizontal position upwardly through intermediate positions varying 8 to an upper- While I have shown my invention in but oneI form, it will be obvious to those skilled in the art that it is not so limited, but is susceptible of various changes and modifications without departing from the spirit thereof, and I desire, therefore, that only. such limitations shall be placed thereupon as are specifically set forth the appended claims. l

What I claim is: 4, 1. In a cabinet fan, the combination of 4a cabinet having two opposite walls formed with aligned grooves on their inner sides extending to the edge of the wall at one end and terminating at a central portion of the wall at the other end, a fan-supporting structure extending be- -tween said walls, a fan carried by said structure,

However,

held in assembled relation while said members are in said grooves, and means for retaining said members in said grooves.

2. In a cabinet fan, the combination of a cabinet including t'wo opposite walls havingopposed grooves extending inwardly from the edge of each wall, a fan assembly adapted to be mounted in said grooves and including a rock shaft or supporting structure extending between said opposed walls, a fan motor therefor carried by said structure and adapted to have a fan mounted thereon, support members having trunnions thereon and adapted to fit in and slide in said grooves, bushings carried by said structure at theends thereof, said trunnions being insertable in said bushings endwise of said structure, and means forvsecuring said support members in said grooves, said assembly being held in assembled relation when said support members are inserted in said grooves and being readily disassembled when they are withdrawn from the grooves.

3. In a cabinet fan, the combination of a cabinet comprising two opposite walls having aligned grooves on their inner or opposed sides extending inwardly from one edge of each wall, a fan assembly adapted to be mounted in said grooves and including a fan motor unit, and support members adapted to fit and slide in said grooves, said unit and said members being formed with complementary interlocking portions providing pivotal connections which permit 4angular ,movement of theA fan motor unit in the cabinet, said complementary interlocking portions. being formed so that said unit and said members are held in assembled relation when said members are inserted in said grooves'and may be readily disassembled when they are withdrawn from the grooves: i y

4. In a cabinet fan, the combination of a cabinet comprising opposite walls having opposed grooves'form'ed therein, a,fan `motor assembly comprising a motor unit having apertures opening inopposite directions from the unit. bushings insertable in said apertures, and plates fitting in said grooves and having trunnions insertable in saidbushings. said assembly being mounted by inserting andrsliding said plates in said grooves and being heldin assembled relation by the opposite walls when the plates are in the grooves.

5. A fanv and motor unit having a pair of support arms extending oppositely therefrom,

.each arm comprising two channel elements of U-cross-section, the legs ofthe U of each element overlapping and being secured to those Fof the other .element to form a tubular arm, each element having an ear or tab secured to the unit, and a supporting structure for the unit, the outer ends of said support arms being connected to said suppprtlng structure.

6. A fan motor unit as set forth in claim 5. wherein the four channel elements are of ,the same form.

7. In a cabinet fan,I the combination of a cabinet comprising two opposite walls having aligned track means extending inwardly from one edge of each wall, a motor unit, supporting members adapted for sliding engagement with said track pivotal connections which permit angular movement of the motor unit in the cabinet, said complementary pivot portions being formed so that relation when said members .are in sliding'engagement with said track means and maybe readilylI disassembled when said members lare withdrawn from sliding engagement with said. track means.

8. A fan motor unit as set forth in claim 5, wherein the outer ends of the support arms are pivoted to the supporting structure on an'axis ex'- tending longitudinally of said support arms.

l said unit and said members' are held in assembledV l 9. In a cabinet fan, the combinationpf a cabinet having opposite walls and air inlet and outletl lopenings between said opposite walls, a fan motor unit enclosed Iwithin said cabinet and pivotally mounted osaid opposite walls ona'n axis extend`' ing therebetween and in a position to translate t air from said inlet opening to said outlet opening,

a lever` of spring material for adjusting the'angular position of the unit, said lever being attached to said unit adjacent the inner side of one of said opposite walls in such manner that it is sprung and therefore presses against said wall. said lever f said wall to clear said projections, and a grill disposed across said one opening through which said lever projects and formed so as to permit the V angular movement of said'lever.

t GUsTAv H. KOCH. 

